Table 7. Baseline characteristics of patients in training set.

Characteristic	Responders (n=26)	Nonresponders (n=11)	P value
Age
Median (range)	64(52-82)	66(56-81)	0.670*
Sex
Male/ Female	15/11	7/4	>0.999**
TNM staging
T1/T2/T3/T4	2/7/13/4	0/5/5/1	0.666**
N0/N1/N2	5/14/7	0/8/3	0.445**
M0/M1	25/1	10/1	0.512**
AJCC stage
I/II/III/IV	1/12/12/1	0/4/6/1	0.737**

^*Independent-samples t-test.

^**chi-square test.